Data Set Information
DATA_SET_NAME VG2 URA TRAJECTORY DERIVED SUMM U1 COORDS 48SEC V1.0
DATA_SET_ID VG2-U-POS-5-SUMM-U1COORDS-48SEC-V1.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION This dataset contains Voyager 2 spacecraft position vectors relative to Uranus in minus U1 coordinates. The U1 or Uranus West Longitude System coordinate system is a planetocentric system fixed to Uranus which is rotating with a 17.24 hour period. The prime meridian of the this system is defined such that at 1986-01-24T18:00:00.000 the Voyager 2 spacecraft was at 302 degrees west longitude (58 degrees east longitude). For the PDS archive dataset, the original data archive has been converted to an east longitude (righthanded) coordinate system minus U1 (-U1). This is achieved by subtracting the U1 longitude from 360.0 degrees. The data are provided in units of Uranian radii which was taken to be 25,600km by the Voyager project. Angles are given in degrees. Both cartesian and spherical coordinates are provided. The Cartesian coordinate system is defined as follows: - X lies in the equatorial plane of Uranus, positive away from the planet, and through the prime meridian at the reference epoch. - Z is parallel to the Uranus spin axis, positive in the southern hemisphere in ecliptic (orbital) coordinates, and, - Y is Z x X (righthanded) The Cartesian coordinate system does not rotate with the planet. SAMPLING_PARAMETER_NAME = TIME SAMPLING_PARAMETER_RESOLUTION = 96.0 MINIMUM_SAMPLING_PARAMETER = N/A MAXIMUM_SAMPLING_PARAMETER = N/A SAMPLING_PARAMETER_INTERVAL = 48.0 MINIMUM_AVAILABLE_SAMPLING_INT = 48.0 SAMPLING_PARAMETER_UNIT = SECONDS DATA_SET_PARAMETER_NAME = POSITION VECTOR NOISE_LEVEL = N/A DATA_SET_PARAMETER_UNIT = URANUS RADII (25,600km) OR DEGREES
DATA_SET_RELEASE_DATE 1993-02-01T00:00:00.000Z
START_TIME 1986-01-24T06:59:12.005Z
STOP_TIME 1986-01-25T04:00:47.921Z
MISSION_NAME VOYAGER
MISSION_START_DATE 1972-07-01T12:00:00.000Z
MISSION_STOP_DATE N/A (ongoing)
TARGET_NAME URANUS
TARGET_TYPE PLANET
INSTRUMENT_HOST_ID VG2
INSTRUMENT_NAME N/A
INSTRUMENT_ID POS
INSTRUMENT_TYPE N/A
NODE_NAME planetary plasma interactions
ARCHIVE_STATUS ARCHIVED
CONFIDENCE_LEVEL_NOTE There is no dataset confidence information archived with this dataset. The data provider has included a flag value which is included in the mag dataset which may reduce confidence in individual vectors due to telemetry or software errors.
CITATION_DESCRIPTION Lepping, R.J., VG2-U-POS-5-SUMM-U1COORDS-48SEC-V1.0, VG2 URA TRAJECTORY DERIVED SUMM U1 COORDS 48SEC V1.0, NASA Planetary Data System, 1993.
ABSTRACT_TEXT This dataset contains Voyager 2 spacecraft position vectors relative to Uranus in minus U1 coordinates. The U1 or Uranus West Longitude System coordinate system is a planetocentric system fixed to Uranus which is rotating with a 17.24 hour period.
PRODUCER_FULL_NAME DR. RONALD J. LEPPING
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